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03 October 2022
 
  » arxiv » nucl-th/9508009

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Neutrinos from Protoneutron Stars: A Probe of Hot and Dense matter
Sanjay Reddy ; Madappa Prakash ;
Date 3 Aug 1995
Subject nucl-th
AbstractNeutrino processes in dense matter play a key role in the dynamics, deleptonization and early cooling of hot protoneutron stars formed in the gravitational collapse of massive stars. Here we calculate neutrino mean free paths from neutrino-hyperon interactions in dense matter containing hyperons. Significant contributions to the neutrino opacity arise from scattering and absorption reactions involving the sigma minus particle. The estimates given here emphasise the need for (a) opacities which incoparate many-body effects in a multi-component mixture, and (b) new calculations of thermal and leptonic evolution of protoneutron stars with neutrino transport and equations of state with strangeness-rich matter.
Source arXiv, nucl-th/9508009
Other source [GID 1004931] nucl-th/9508009
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